Vol. 10, Issue 10 (2021)

Author(s):
Ram Pratap Pal, Ram Pratap Singh, Shivanand Maurya, Hariom Mishra, Adesh and Deepraj Verma

Abstract:
The present investigation entitled “Response of nitrogen levels under different varieties of hybrid rice on growth, yield and yield attributes (Oryza sativa L.) in eastern Uttar Pradesh.” was carried out during Kharif season of 2020 at Agronomy Research Farm of the A.N.D. University of Agriculture and Technology, Kumarganj, Ayodhya (U.P.). The 16 treatment combinations having four hybrid rice varieties viz. Arize 6444 gold, Ankur 7576, 27P31 and Shahi Dawat was investigated with four levels of nitrogen viz. control plots, 50% RDN, 75% RDN and 100% RDN was kept in different plots. The experiment in F-RBD and replicated in three times. The all growth, yield attributes, yield were increased significantly with Arize 6444 gold except plant height at 30 DAT, LAI at 30,90 DAT, no. of shoots hill^-1 at 30 DAT, dry matter accumulation (g m^-2) at 30 DAT and days taken to maturity, length of panicle (cm) and harvest index. The 100% RDN (150 kg N/ha) produced significantly higher growth, yield attributes and yield at all stages except plant height at 30 DAT and test weight (g).The highest net return and B: C ratio were computed under V₁N₄ (Arize 6444 gold at 100% RDN).On the basis of overall observations hybrid rice variety Arize 6444 gold at 100% RDN (150 kg N/ha) was found to be best suitable for obtaining the higher yield of rice.